Shock-absorber.



M. T. CONVERY.

SHOCK ABSORBER.

APPLICATION FILED MAR. 55. 1914.

1,160,381 Patented Nov. 16, 1915.

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V M. T. CONVERY.

SHOCK ABSORBER.

APPLICATION FILED MAR. 5. 1914.

Patented N0v.-16, 1915.

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M T. CONVERY.

SHOCK ABSORBER.

APPLICATION FILED rams. 1914.

1,1 60,381. Patented Nov. 16, 1915.

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MARTIN T. ooNvnaY, QF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR or ONE-HALF 'ro VINCENT r. PADU A, or PHILADELPHIA, PENNSYLVANIA.

SHOCKLABSORBER.

Application filed March 5, 1914.

To all whom it may concern;

Be it known that I, MLARTIN T. OONVERY, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements. in Shock-Absorbers, of which the following is a specification. j j

My invention relates to improvements in shock absorbers, and more particularly to a combined shock absorber and rebound controlling device,.the,object of the invention being to provide an elastic connecting medium between. two members of anelliptical spring or between a spring and a fixed member of a vehicle frameso that the varying movement of the spring will be cushioned so as to prevent undue vibration and jar.

A. further object is to provide a device of the character stated which may be connected to any ordinary vehicle, but which is primarily designed for use in connection with automobiles, and which will be readily placed in position and efficiently perform the functions forqwhich it'is intended. 7

With these and otherobjects in view, the invention consists in certain novel features of construction and combinations and arrangements of parts as will be more fully hereinafter described andpointed out in the claim.

In the accompanying drawings: Figure 1 is a view in longitudinal section illustrating my improvements. Fig. 2is a view in longitudinal section on the line 2-2 ,of Fig. 1. F ig. 3 is a view in horizontal section on the line 33 of Fig. 1. Fig. 4 is a view in horizontal section on the. line lt of Fig. 1. Fig. 5 is a fragmentary view in elevation of the upper end of one of the supporting bars. Fig. 6 1s a fragmentaryview in section similar to Fig. 1, but showing the upper portion only of a shock absorber embodying a modification of my invention, and Fig. 7 is a view in horizontal section on the line 7-7 of Fig. '6.

1 represents a head which is preferably of general elliptical shape in plan, and which is provided on its upper face with upwardly projecting lugs 2 having alined openings 3 extending transversely through the lugs and adapted to receive a pin 4: which constitutes a coupling medium between the head and an eye 5 on one end of a spring member 6.

A tubular bushing 7 is interposed between Specification of Letters Patent.

Patented Nov. 16, 1915.

Serial No. 822,752.

the eye 5 and the pin 4 to take up wear, and afford a neat juncture of the parts. The lugs 2 are provided with longitudinal openings 8 which extend all the way through the lugs and through the head 1. In these open ings .8, parallel supporting bars 9 are posi tioned, and as the openings 8 intersect the open ngs 3 in the lugs, the bars 9 when in position operate to hold the pin 4 against possibility of longitudinal movement.

In assembling the parts, it is of course necessary to place the pin 1 in position before the bars are projected through the head.

The upper ends of the bars 9 are provided with alinedopenings 10 for the reception of a bolt 11 which is projected through the eye 12 of a spring member 13, a bushing ll bemg inserted between the eye and the ,bolt as .a mechanical expedient- The bars 9 at their lower ends are projected through openings 15 in a cross bar 16, and pins 17. project through openings 18 in the lower ends of the bars 9 and holdthe crossbar 1.6 and supporting bars 9 together as will be more fully hereinafter described.

The head 1 and the cross bar 16 are provided on their opposed faces adjacent their ends with circular enlargements 19 projecting into the ends of coiled springs 20, said springs 20 being relatively strong and operatlng as expansion springs to force the head land bar 16 apart.

Between the coiled springs 20, I locate a contraction spring 21 which latter is, as compared to the springs 20, relatively weak, and 1s provided at its ends with hooks 22 which are projected through eyes 23 in theinner ends of threaded pins 24 and 25 respectively. The upper pin 24; is located in a threaded opening 26 in the center ofhead 1, .and is relatively short. The lowerpin 25 extends through a threaded opening 27 in the center ment of the pin, and ends of the spring and lock the parts against movement after adjustment.

The pins 17 above referred to are nor mally positioned in recesses 30 in the lower face of bar 16. These recesses conform in length to the length of the pins, and while the pins may be readily inserted and withdrawn when springs 20 are compressed, when said springs 20 are permitted to expand, they will securely hold the pins in their reof bar 16, and is relatively long having on its ,outer ends nuts 28 and 29 to permit adjustmoval whenever deslred.

cesses and prevent any possibility ofdis connection.

" All of'the' parts below the head are con fined in a removableeasing 31 which, at its upper'edge, fits in a groove 32 in theouter wall of the head, and is secured by bolts 33,

These bolts 38 extend through registering] openings in the casing and in lugs3t, the latter preferably integral with the head and located inside of the casing. Nuts"85 are screwed-onto the bolts and securely hold "the casing in place, yet permit of its refrom the lugs 'as soon as any Weight or strain is had uponthe shock absorber. V In the modification illustrated in Figs. 6 and 7, I provide ahead 37 corresponding to head l withiipwardly projecting lugs 38 locatedinside of the bars 39 which correspondto the bars 9 of thepreferred form. The openings 40 in theheadB'? to receive the bars 39 are so positioned thatthe bars 39 close the openings 41 in the lugs 38, and hold the pin 42 against movement. 'This pin 42serves, as' a coupling for the eye 48, while the eye 44: is coupled to the upper ends of the bars 39 by the bolt45.

In other essential features, the construction is precisely the sameas'in the preferred form, and :this modification is designed primarily for use with a particular type of car, while the preferred form is adapted for use in connection with almost-any style of car or spring.

"It will be noted particularly byr'eference to Fig. l thatwhile the springs 20 areundercompression, the spring 21 is slightly expanded. When additional strains or pres sure is'had downwardly upon the head 8, or upwardly upon *the bars 9, springs 20 will be further compressed while spring 21 will flopies of "this patentmay'be obtained for for the springs 20 to rapidly expand or give what is lmown as a rebound The spring 21 will overcome this reboundto suchlan eX- tent that it will not be appreciable. In other words, the tendency of the springs 20 to sud denly expand is overcome by the constant contracting strain of spring-21, and this spring 21 therefore operates to control the rebound and cause the shock absorber to control the movementof the springs in both directions. 1 1

Various other slight changes might be made in the general form and arrangement of parts described without departing from my invention, and hence I do not limit myself to the precise details set forth, but conone end open and of substantially the same shape and contouras said head andadapted to snugly fit w1th1n said groove, lugs depending from the'opposite side of saidv head within said casing and provided with alined perforations, said casing being providedon its opposite sides wlth perforations adapted to register with the perforations in said lugs when said casing is properly assembled with said head, securing bolts extending entirely through said casing and each beingengaged at its opp'osite'ends in said perforated lugs and casing perforations, a. cross bar within said casing, springs interposed between said head and said cross bar and parallel members secured to said crossbar and projecting through said head, substantially as described.

In testimony whereof Ihave' signed my name to this specification'in the presence of two subscrlbmg witnesses.

MARTIN roon vnnv. WVitnesses.

V. P. 'PADUIJA, CHAS. 'Por'rs. V

five cents each, by addressingthe Commissioner of Patents,

Washington, Di Cf 

